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Proceedings Paper

New visibility computing algorithm for three-dimensional indoor walkthroughs
Author(s): Qiang Liu; Deren Li
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Paper Abstract

At present, Cybercity has introduced the visualization f 3D buildings, and the further development necessarily includes various applications of 3D scenes from outdoor to indoor. Nevertheless, as a large furnished 3D architectural model is usually made up of millions of polygons, ideal frame rates for smooth interactive walkthroughs are hardly available. Visibility processing for potentially visible set of polygons (PVS) is of great importance in improving performance for interactive indoor walkthroughs. A novel algorithm of constructing room-to-room PVS and view-to-room PVS for various architectural structures, which may be concave, or non-axis-aligned, etc., is proposed in this paper. Test shows it can drastically improve the performance of real-time interactive walkthroughs in a large furnished architectural 3D model.

Paper Details

Date Published: 30 May 2003
PDF: 12 pages
Proc. SPIE 5006, Stereoscopic Displays and Virtual Reality Systems X, (30 May 2003); doi: 10.1117/12.474051
Show Author Affiliations
Qiang Liu, Wuhan Univ. (China)
Sichuan Bureau of Surveying and Mapping (China)
Deren Li, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 5006:
Stereoscopic Displays and Virtual Reality Systems X
Andrew J. Woods; John O. Merritt; Stephen A. Benton; Mark T. Bolas, Editor(s)

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